title: A rare presentation of an intraosseous lipoma in the proximal femur.
abstract: METHODS
  Female, 32 FINAL DIAGNOSIS: Intraosseous lipoma Symptoms: Swelling of the thigh Medication: - Clinical Procedure: Excision of the mass Specialty: Surgery.
  
  
  OBJECTIVE
  Rare disease.
  
  
  BACKGROUND
  Intraosseous lipomas happen to be one of rarest benign soft tissue tumors with only a little known about its etiology and pathophysiology. A pubmed search using key word "Intraosseous lipoma". Came back with 165 results. All the sizes and presentations were reviewed and compared with the case we are presenting. We are reporting a 15×20 cm intraosseous lipoma.
  
  
  METHODS
  32-year-old lady with a large intraosseous lipoma in the proximal thigh. The largest reported in English literature.
  
  
  CONCLUSIONS
  A intraosseous lesion with this size could still be benign even if its lager than 5 cm. Keeping in mind that with a lesion this size malignancy should always be ruled out.
authors.affiliation: King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.
authors.forename: Samar A
authors.initials: SA
authors.lastname: Rabbani
authors.forename: Imran
authors.initials: I
authors.lastname: Ilyas
authors.forename: Husam
authors.initials: H
authors.lastname: Alrumaih
keywords: benign; bone tumor; intraosseous lipoma